PDF malware analysis — malicious · 824730e954230fa8

MALICIOUS

PDF

12.4 KB

MD5: ff65f31c555856f76f368cea68df6df9 SHA-1: 8c55b01fd1c902b5449963356904964cc3b396aa SHA-256: 824730e954230fa8cc876faf4976aa77dbbacf49b6a09c4c9475e983eb9ab610

78 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript, identified by the PDF_JAVASCRIPT and PDF_JS heuristics. The critical CVE_2007_5659 heuristic indicates the use of a known vulnerability (Collab.collectEmailInfo) to execute JavaScript. This script is likely designed to download and execute a second-stage payload, as suggested by the suspicious extracted artifacts named legacy_pdfkit_stage_000.js and legacy_pdfkit_stage_001.js. The embedded URL heuristic also points to potential malicious links within the document.

Heuristics 4

Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (identified after JavaScript deobfuscation)
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `1847af0a099665b6ac45af66402e56ed64237a1b287618ee3d6643267fda6f35`	pdf-javascript-stream	PDF /JS object 7 at offset 0x19D	343 bytes
`legacy_pdfkit_stage_000.js` `f05b08d9e8c3a74819d85a4c46c7f2e746a103a1da52ecbdf5c8f9e211c43e81`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F0	12059 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).
`legacy_pdfkit_stage_001.js` `de4987f662df80576ba0e518d3a3e12b9bed50250fadb541a6e110026c307f4e`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x2F0	4990 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.